Means for lubricating machine-tools.



PATENTED OUT. 23, 1906. E. J. KEARNEY & T. TREOKER.

MEANS FOR LUBRIOATING MACHINE TOOLS.

APPLICATION FILED I'EB.6'.1905.

zgufiwam ayy v 64 m 50. fl f mu UNITED STATES PATENT orrron.

EDWARD J. KEARNEY, or WAUWATIOSQAQ, AND THEODORE TRECKER, or-

WEST ALLIS, WISCONSIN, ASSIGNORS TO KEARNEY AND TRECKER COMPANY, or MILWAUKEE, WISCONSIN, A CORPORATION or Wis- GONSIN.

MEANS FOR LUBRICIAYTINVG MACHINE-TOOLS.

Specification of Letters Patent. Application filed February 6, 1905. Serial No. 244,333.

Patented Oct. 23, 1906.

To all whom it mdy concern:

Be it known that we, EDWARD J. KEAR- NEY, residing at Wauwatosa, and THEODORE- certain new and useful Means for Lubricating Machine-Tools, of which the followin is a specification, reference being had to t e ac-.

cor lr ipanying drawing, forming a part hereof.

e main object of this invention is to prov de for and insure thorough lubrication of the power-transmitting gearing of machines tools, such as Inillin -machines, without attention and care on t epart of theoperator.

Itconsists in certain novel features of construction and in the pecuhar arrangement and combinations of parts, as hereinafter particularly described and claimed.

The accom anying drawing shows a vertical section 0 a milling-machine embodying the invention. T

a designates a box-frame or hollow case like or similar to those usuall employed in this class of machines. It is ormed or pro-. vided with'boxes or bearings b, c, d, and efor a train of power-transmitting and s eedchanging gearing, and in the lowerpartt ere of an oil well or rece tacle f is formed. The boxes b, c, and e are ormed or provided with external pockets, cups, or receptacles g,

which communicate, through openings or passages, with the interior bearings and are adapted to catch oil falling or flowing from above and deliver it to the journals of the gearing.

The train of'gearing, which is inclosed in the frame or housing a and comprises a number of horizontal shafts arranged one above another and connected by intermeshing gears, is vertically disposed or so arranged that the oil will flow by gravity from the'upper to the lower gears and bearings and thence back into the well or reservoir below. The outer end of the long bearing ,2 is formed with an annular oil-intercepting channel, which communicates on the. under side, through a passage or opening h, with the interior of the hollow bracket surrounding said bearing and thence with the interior of the casing a.

i is a pump having an actuating connection pipe j extending down into the well or reservoir. It is connected by an upwardly-extending discharge-pipe k with a horizontal perforatedpi e or distributin -head '1, arranged over t e upper gears '0 the train'in position to dischargeoil thereon and into the pockgts or receptacles gof the upper bearings In the present case for the purpose of illustration a rotary pump is shown connected 'directly by a pinion with the lower gear of the power-transmitting train; but any other form of pump suitable for elevating the oil from the well or reservoir to the upper part of the train of gearing may be used. k

In the machine shown in the drawing the tool-arbor or work-spindle m is provided with a number of change-speed gears of-different diameters arranged to be engaged by either one of alike number of corresponding gears shiftable lengthwise upon the shaft 1:. below and parallel with said arbor or spindle.

I o is the driving-shaft, 1provided with a pulley p and a gear q, whic is connected by an intermediate gear 4 and a pinion s with the shaft n.

An auxiliary train of change-speed gearing t for 'o crating the sliding work table or platen (indicated by dotted lines on the drawing) is actuated through the intermediate gear 1" of the work-spindle driving-train and is inclosed in a housing 11,, formed on or attached to the main frame. This auxiliary train of gearing is supplied with oil from a pocket or receptacle g, located within the main frame or casing a below the adjacent bearing 0 and communicating, through an opening or housing a. An overflow opening or passage 1), located above the lower sides of the gears ofthis auxiliary train, conducts the sur lus oil back into the main frame or casing, w ere it runs down into the pocket or receptacle g, which supplies the driving-shaft o. The construction and arrangement of the component parts of the power-transmitting and change-speed gearing in milling-machines and other machine-tools may, however, be varied within wide limits without materially passage, with the interior of the 1 affecting the principle and operation of our lubricating system and without departing. from the spirit and intended scope of our with a part of the gear-train and a suctionl invention.

through the pipe j and forces it up throug the pipe is into the perforated pipe Z, which" plus'oil escapes and follows down the walls When the machine is in operation, the pump 2' draws oil from the well or reservoir If distributes and discharges it in small streams upon the upper gears of the train and into the pockets or receptacles g of the boxes b, as well as upon the arbor or spindle m and to some extent upon the gearing below. The surplus oil delivered to the journals of the arbor or spindle m finds itsway out through the inner ends of the boxes or bearings b and following down the Walls of the casing a is caught in the pockets 9 of the boxes 0 and conducted to the journals of the shaft a. From the inner ends of the boxes 0 the surof'the easing into the reservoirf on one side of thema'chine and on the other side into the pocket or receptacle t, from which it runs into the housing a, in which it rises to the level of the overflow-opening v. The excess of oil supplied to said housing that is not required forthe lubrication of the gearing therein is discharged through the opening a back into the casing a and flows downthe wall thereof into the pocket or'receptacle g. The surplus oil supplied to the shaft 0 in the bearing e escaping into the annular channel in the outer end of said bearing flows back through the-passage or-opening h 1nto the wellor receptacle'f. The entire train of gears and theirgournal-bearings are-thus-co-- piously supplie with oil without care or at tention on the part of theoperator, the surplus'oil flowing backinto t e well or-reser voirf, from whiehit is'again. elevated by the pump and deliver ed to the upper part of the gear-trains The box or bearing of anyarbor; spindle, or shaft of the-trainwwhich pro-jectsthrough the casing may, at: its outer' end 'with an oil-intercepting channel communicating through adrain olpening or passage: on-the under side with t einterior of the casing; In short, the con-- zontal shafts arranged-one above another" and-connectedrby intermeshinge ears, o'fra frame or case containing said gearing,- an: oilreservou loeated below-sa1d gearing, and a pump adapted to elevate'oil from said reser voir and. distribute and deliver it to .upper gears" of said train,- substantially as described:

2. In ameans for lubricating machine+tools the combination with a tram of powertranslike-the-box e, be pro vided the scope of our in-' mitting gearing com rising a number of horizontalshafts locate one above another, of a frame or case containing said gearing and provided with boxes ha ving oil-cups communicating with the journal-bearings [of said shafts, an oil-reservoir located below said gearing, and a pump adapted to elevate oil from said reservoir and to distribute and deliver it into the oil-cups of the upper bearings from which it flows bygravity into those below and thence back into said reservoir, substantially as described.

\ 3. Ina means for lubricating machine-tools vthe combination with a train of power-transmitting gearing comprising a number of horizontal shafts arranged one above another and connected by intermeshing gears, of a frame or case containing said gearing and provided with boxes having oil-cups communicating with the journal-bearings of said shafts, an oil-reservoir located below said gearing, and a pump adapted to elevate oil from said reservoir and to distribute and deliver it to the upper gears and into the oil-cups of the upper bearings from which it flows by gravity into those below and thence back into said reservoir, substantially as described.

4. In a means for lubricating machine-tools the combination with a train of power-transmitting gearing comprising a-number of horizontal shafts arranged oneabove another and connected by intermeshing gears, of a frame or case containing said gearing, an oil-reservoir located below said gearing, a distributinghead arranged to deliver oil to the upper gears of said train, and a pump adapted to supply oil from said reservoir to said head, substantially as described.

5. In a means/for lubricating machine-toolsthe combination with a train of power-transmitting gearing comprising a number of horizontal shafts located one-above another, of a frame or case containing said gearing and provided with boxes having oil-cups communi-- eating with the journal-bearin s of said shafts, an oilreservoir located gearing, a distributing-head arranged to deliver oil to the upper gears and to the oil-cups of theupper bearings from which it flows by gravity into those below and: thence back into said reservoir, and a pump adapted to supply oil from said: reservoir -to said head, substantially as described.

6. In a means for lubricating machine-tools thezcombination with a train ofpower-transmitting gearing comprising'a number of horizontal shafts arranged one above another and connected by intermeshing gears, of a frame or-case containing said gearing and provided with boxes I having oil-cups. communicating with the. journal-bearings of said shafts, an oil-reservoir located below said gearing, a distributing-head adapted to deliver oil to the upper gears and to theoil-cups of the upper bearings from which it flows by gravity into below said those below and thence back into said reservoir, and a pump adapted to supply oil from said reservoir to said head, substantially as described.

7. In a means for lubricating machine-tools the combination 'with a train of power-transmitting gearing, comprising a number of horizontal shafts arranged one above another and connected by intermeshing gears, of a frame or case having bearings therefor, an oil well or reservoir in the lower part of the machine, an auxilia gear-train contained in a housin which is a apted to hold oil in contact wit gears of said train and communicates with apocket or receptacle within the main frame or case below the upper part of the main train of gearing, and a pump arranged to elevate oil from said well or reservoir to the u perart of the main train, substantially as escri ed.

8. In a means for lubricating machinetools, the combination with a power-trans mitting train 'of gearing, of a frame or casehaving bearin for said gearing with pockets for catching o1 an oil well or reservoir below said train, a erforated ipe located over and arranged to 'scharge 05 upon the u per part of the train and into the pockets of t 0 upper bearings, and a pump arranged to elevate oil from said well or reservoir into said pipe, substantially as described.

In witness whereof we hereto afiix our signatures in presence of two witnesses;

EDWARD J. KEARNEY.-

v THEODORE TRECKER.

Witnesses: I

EUGENE BRAUNscHwEm-ER; D. CoL Urr'r, 

